Carbureter for explosive-motors.



BAVEREY. CAHBURUEH Foa exPLoslvE mamas.

APPHCATION flLED MAFLZQ. ISH.

s E s s E N .n w..

F. BAVEREY.

CARBUGFTER FOR EXPLUSWE MOHJH'S` APPLxcATsoN min MAR. 29. x91?.

2 SHEE'ISMSHEET 2` TNESSES www 5;?,9

Patented Muy 7,1918.

UNITED. STATES Pn'rnrrfry OFFICE.

:mancate nAvnnnY, or LYON, zmnrn, or Lyon,

EBANCE, ASSIGNOB TO SUCIETE DU CARBUBTEUB FRANCE, A. CORPORATION 0FFRANCE.

CABBUBETER FOR EXPLOSIVE-IMIOTOBS.

Specioatlon o! Letters Patent.

:Patented may '1, 191s.

'origlnai apparition nea :february 1, 1914, serial No. 811,277. Dividedandina application ma :man se,

1917. Serial No. 158,234.

To all rwhom t may concern:

Be it known that I, Fnanols Bavnnnr., a citizen of the French Republic,residing at Lyon, in France, have invented certain new and usefulImprovements in Carbureters for Explosive-Motors, of which the followingis a specification, reference being had to the accompan A'ing drawings,forming part` of this speci cation, in which:

F i re 1 illustrates the construction of one orrn of apparatusdiagrammatically.

Fig. 2 is a lan view partially in section showing one orm ofconstruction of an apparatus built in accordance with my invention.

Fig. 3 is a detail perspective view of the air tube inlet or casing.

Fig. 4 is a perspective view of the valve whic 1 is rotatably mounted inthe casing shownin Fig. 3.

Figs. '5, 6, 7 8 and 9 are sectional views, respectively, on the linesB-B, CHG, LDH-D, EME, and FMF of Fig. 2, showing portions thereof.

This invention relates to improvements in carbureters for explosiveengines, and is a division of my co ending application Serial No.817,277., file ebruary 7,1914.

@ne of the ob'ects of my invention is to provide means or simultaneouslyvarying the air supply and the supply of fuel passn ing to the engine.

accomplish this b supplym an emulsion rich 1n fuel to t e air inta epesage through a plurality of nozzles-and so ar ran e said nozzles withrespect to the air inta e passage that the air supply and .fuel supplypassing to the engine are simultaneously regulated, so as to insure agood mix ture for all positions of the throttle valve and all speeds ofthe en ine.

The precise nature o my invention will be best understood by referenceto the accompanying drawings, it being premised, however, that variouschanges may be made in the details of construction and generalarrangement of the parts, without departing from the spirit and scope ofmy invention as defined in the a =ended claims.

Referring to t 4diagram shown in Fig. l, the reference character 2designates a casing havingl a passage 3 therethrough which isoi rectanlar form, and which passage is arrange to communicate with the intake tothe engine. Slidably mounted within this assage 3 is a throttle valve 4,and extending into the passage from the intake side thereof are threenozzles 5, 6 and 7, which are ar ranged to deliver an emulsion of fueland air to t e air intake channel. The ends of these nozzles arerectangularin cross section, and the thrhe nozzles extend entirelyacross the width of the assage 3, so that when the throttle valve 1smoved to its full open position the mouths of the ends of the nozzles 5,6 and 7 will be entirely uncovered. These nozzles are arranged in such amanner that the size of the openings uncovered and covered by thethrottle valve will var in proportion to the size of the air inta eunder the control of the throttle valve, and as the nozzles are placedside by side, the nozzle 5 will be fully uncovered before the throttlevalve starts to uncover the nozzle 6, the arrangement being such thatthe various nozzles will be opened successively. y

In Figs.2 to 8 I have s own another form of device in which I have used,the same reference characters for the same parts. In this constructionthe casing 2 is provided with a cylindrical chamber 8 for the receptionof ,a rotary throttle valve 4, which is provided with a through assage 9which connects the l: ke and out et ends of the passage 3 thi,xgh hecasing and forms a. continuation thereof when the valve is in its fullopen position, shown in Fig, 2. Connected to one side of this casing 2is a cap 10, which forms one side of the valve casing, 'and supportedfrom this ca Formed within the casing 2 at one side 10 is a. constantlevel reservoir 13.

thereof are a plurality of Vshaped recesses 14, 15 and 16 which arearranged to communicate with the chamber 8. Formed Within the ca 10 areemulsion passages 17, 18 and 19, w

leve reservoir is a shell 20 havin@ achamthereof,

her 21 formed in the lower au fis which is in communication with theconstant level chamber by means of a channel 22, so that fuel isconstantly fed to'said chamber. Formed within this shell 20 is anatmospheric well 23 which receives fuel from the-chamber 21 through acalibrated openin 24, and 25 is a screw cap; for the .atmosp eric wellhaving screens 26 throu h which the air can pass to the well. T e"emulsion-passage 19 communicates with the atmospheric well and isrovided with a Venturi tube 27, and 28 is a suction controlled feed jetcommunicatin with the passage 19 and which r ives uel through thecalibrated opening 2 rwhich communicates with the chamber 21. 30 is -acompensating jelgcommunicating with the passage 19 and the well 23. Thepassage 18 vis also provided with a Venturi tube 31 which communicateswith the atmos heric well 28, and 82 is a suction controll feed jetcommunicating with the passage 18 and which receives fuel from thechamber 21 through a calibrated opening 33. 34 is a compensating jetcommunicating with the passa .18 and the well 23 slightly above the owerend of the compensating jet '80 for thev passage 19, the jets 30 and 34are supplied with a measured quantity of gasolene passing through thecalibrated opening 24. en the throttle is shifted so as to uncoveremulsion passage 18 and to retain emulsion passage 19 covered, theamount of gasolene fed to assa 34 is reulated by the calibrated ori ce 2and the eight at which essa 84 opens into well 83 as this determines t eefective head causing theilow through the orifice 24. When passage 19 iscovered by the throttle the flow through p ge 34 ceases and thecompensating gasolene is added entirely through passage 30, V the amountbeing constant r unit of time, and being determined b t e calibratedorifice 24 and by the hei t at which passage 30 opens into the we 23. Asthe passage 34 opens above passa e 80, it follows that the compensatingso ene furnished to the emulsion passage 8 is smaller in amount per unitof time than the compensating gasolene supplied to emulsion passage 19.The passage 17 is in direct communication with the constant' level-.reservoir 18 through the calibrated opening 35, and 36 is an air inletopening for the passage 17, the size of which mary be adjuste b means ofthe -screw 37. t willireadily e understood by those familiar with theart that the same results for feedin the compensating gasolene may beobtains if emulsion passages 18 and 19 had independent supplies ofcompensating gasolene, and which might be arranged in other ways thanthe specific illustration in the drawings. Y 4

The operation of this device will readily be understood from thedescription\of the.

Lacasse diagram shown in Fig V1, but inl tliis case the valve is rotatedso as to gradually cut olf the air supply, and at the same time cut oifcommunication between the passage 9 in.

the valve 4: and the .recesses 14, 15 anal` 16.

As shown in Fig. 2 the valve is in 'its full,

open sition so that a full supply of fuel and all? is fed to the engine,but when the valve is shifted a predetermined distance the feed frompassage 19 through the recess 16 will be cut 0H and when moved stillfarther the feed from passage 18 through the recess 15will be cut off.

T he advantages of in invention result from the provision of a p uralitof jets for feeding emulsion to an air inta e, together with valve meansfor proportionately vary-` .sage leading therefrom to the intapassage'being 'small relative to the air passage, means for admittingairto said passages to form an emulsion, anda throttle arran tosimultaneously vary the size of the air intake and the area of thevemulsion p ,substantially as described.

2. n a carbureter, the combination of an airv intake arranged to sup lya fuel mix- 4ture to the engine, a plura 'ty of jets each having apassage lea/din therefrom into the air intake, means for a itting air tosaid passages to form an emulsion, and a throttle arranged tosimultaneously vary the size o the air intake and to successivelfy;sopen or close t emulsion passages, su tantially as descri t ion 3. In aLarbaaeter having a constant level chamber da well communicating with theatmosphere, the combination of an air intake arranged supply a fuelmixture to the engine, a pl rality of-jets each having a passage leadingtherefrom into the air intake, means for admitting air to said passagesto form an emulsion, some of said jets opening below the level of theliquid in the constant level reservoir into the well, and a throttlearra d to simultaneously vary the area of the air intake and the area ofthe emulsion passa es, substantiallykas described.

4. n a carbureter, an air conduit, a plurality of fuel conduitsdischargn thereinto, some of said fuel conduits being provided with twosources of fuel supply, one providin a supply variable per unit of time,an one constant per unit of time, and a throttle arranged tosimultaneously 4vary the area of the air conduit and the area of thefuel conduits, substantially as described.

iio

inclusesV 5. In a oarbureter, an air conduit, a plu rality of fuelconduits subject to the influence of'air passing through the airconduit, means for admitting air to said conduits to form an emulsion,all of said conduits hav in a suction controlled fuel feed, some of saidfuel conduits having another fuel feed giving a fuel supply increasingat a less rate than the air supply, and a throttle arranged tosimultaneously vary the area of the air conduit and the area of theopenings from the fuel conduits thereto, substantially as described.

6. A carbureter having an air intake, a plurality of passages leadingthereto, said passages being small relative to the air intake, means forfeeding air and fuel to each of said passages, a throttle valve in saidair intake arranged to vary the size of the opening therethrough, saidthrottle valve also being arrangedto successively open and close theemulsion passages successive y leading to the air intake, substantiallyas described.

7. A carbureter comprising a easing having a through opening, one end ofsaid opening being arranged to communicate with the intake of an engineWhile the other end thereof is open to the atmosphere, a rotary .valvein said casing having an opening therethrough arranged to register withthe opening through the casing, a plurality of emulsion passagescommunicating with the opening through the valve when the valve is inits full open position, a jet communicating with each passage, means forfeeding fuel to each of said jets, and means for feeding air to each ofsaid passages, said valve heini arranged to successively close all theemu ion passages and to simultaneously reduce the `size of the throughopening, substantally as described.

8. Acarbureter having an intake arranged to supply a fuel mixture to theengine, an air passage leading thereto, a Well open at one end to theatmosphere, means for feeding fuel to the well, a plurality of emulsionpassages communicating with the intake, means for admitting air to eachpassage, a. plurality of sunken jets communicating with the well andeach emulsion passage, and a valve arranged to simultaneously vary thesize of the lntake and the area of the emulsion passages, substantiallyas described.

9. A carbureter having a casing with an opening therethrough, one end ofsaid opening communicating with the intake of the engine, the other endthereof being open to the atmosphere, a :valve opening through saidcasing having an opening therethrough arranged to register with the.opening through the casing, a plurality of emulsion passages in thevalve casing communicating with the valve opening adjacent to theopening for the air, the opening through said valve being arranged tocommunicate with the emulsion passages when the valve is in its openposition, the valve bein arranged to successively close the emu sionpassages and simultaneously reduce the size of the passage through thecasing, substantially asl described.

In testimony whereof, I have hereunto set my hand.

FRANQOIS BAVEREY.

villitnesses z MARIN VACHON, L. Esci-Inn.

